docs: def pl2psv(plane):
      """
      Return a point and two orthogonal spanning vectors that generate
      a specified plane.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/pl2psv_c.html
  
      :param plane: A SPICE plane.
      :type plane: supporttypes.Plane
      :return:
              A point in the input plane and two vectors
              spanning the input plane.
      :rtype: tuple
      """
      assert (isinstance(plane, stypes.Plane))
      point = stypes.emptyDoubleVector(3)
      span1 = stypes.emptyDoubleVector(3)
      span2 = stypes.emptyDoubleVector(3)
      libspice.pl2psv_c(ctypes.byref(plane), point, span1, span2)
      return stypes.cVectorToPython(point), stypes.cVectorToPython(
              span1), stypes.cVectorToPython(span2)